Search Results for: Fish

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8,261 results

8,261 results for: Fish

  1. Animals

    Being a vampire can be brutal. Here’s how bloodsuckers get by.

    Blood-sucking animals have specialized physiology and other tools to live on a diet rich in protein and lacking in some nutrients.

    By Susan Milius
  2. Animals

    Newly discovered lymph hydraulics give tunas their fancy moves

    There’s still some anatomy to discover in fishes as familiar as bluefin and yellowfin tunas.

    By Susan Milius
  3. Paleontology

    Ancient armored fish revises early history of jaws

    The fossil of a 423-million-year-old armored fish from China suggests that the jaws of all modern land vertebrates and bony fish originated in a bizarre group of animals called placoderms.

    By Meghan Rosen
  4. Archaeology

    Peru’s plenty brought ancient human migration to a crawl

    Ancient Americans reached Peru 15,000 years ago and stayed put, excavations suggest.

    By Bruce Bower
  5. Life

    Hybrids reveal the barriers to successful mating between species

    Scientists don’t understand the process of speciation, but hybrids can reveal the genes that keep species apart.

    By Tina Hesman Saey
  6. Life

    How to make a fish face, and other photo contest winners

    The tiny face of a 4-day-old zebrafish embryo snags the top spot in microscopy photography contest.

    By Emily DeMarco
  7. Life

    Polluted water: It’s where sea snakes wear black

    Reptile counterpart proposed for textbook example of evolution favoring darker moths amid industrial soot.

    By Susan Milius
  8. Health & Medicine

    Live antibiotics use bacteria to kill bacteria

    Certain bacteria will destroy other bacteria without harming humans. They may be an answer to antibiotic-resistant infections.

    By Elizabeth Eaton
  9. Climate

    Lakes worldwide feel the heat from climate change

    Lakes worldwide are warming with consequences for every part of the food web, from algae, to walleye, to freshwater seals.

    By Alexandra Witze
  10. Animals

    Dragonfish opens wide with flex neck joint

    New study reveals anatomical secrets of mysterious deep ocean fish.

    By Cassie Martin
  11. Animals

    Narwhals react to certain dangers in a really strange way

    After escaping a net, narwhals significantly lower their heart rate while diving quickly to get away from humans.

    By Mariah Quintanilla
  12. Life

    California’s goby is actually two different fish

    One fish, two fish: California’s tidewater goby is two species.

    By Amy McDermott